"Jim C. Nasby" <jnasby(at)pervasive(dot)com> writes:
> The powerbook tests were not very repeatable at 100,000 rows, so I
> bumped up to 1M. The results still aren't very repeatable...
Hmm, I suspect you pushed it into the realm where it's doing actual
I/O ... which we don't want for this particular test. (Although it's
worth noting that if your query *is* doing actual I/O, the EXPLAIN
overhead certainly ought to be down in the noise.)
regards, tom lane